<test>
    <substitutions>
        <substitution>
           <name>func</name>
           <values>
               <value>right(URL, 16)</value>
               <value>substring(URL, greatest(minus(plus(length(URL), 1), 16), 1))</value>
           </values>
       </substitution>
    </substitutions>

    <query>SELECT count() FROM hits_100m_single WHERE NOT ignore({func})</query>
</test>
